PCB testing service

We provide testing board services, utilizing professional quartz crystal testing equipment to measure the frequency data of individual components at room temperature and after On board vibration. We compare and confirm the errors between the two to ensure that the frequency errors between the customers circuit design and the individual components are minimized. We measure the customers circuit board accurately, professionally, and carefully, avoiding frequency deviations caused by issues in the application of the customers circuit board and individual components.

Step 1: Frequency accuracy test:

1-1 Use quartz crystal professional testing equipment to obtain data of the quartz crystal body at room temperature
1-2 After mounting the quartz crystal on board, use Spectrum to measure the oscillation frequency on its oscillation circuit
1-3 Compare the data obtained from testing the quartz crystal body with the resonant frequency data obtained after mounting the quartz crystal on board, and confirm the error between the two
1-4 If there is a significant error in the test frequency data between the two, the load capacitance on the excitation circuit will be adjusted to minimize the frequency data error between them and avoid frequency deviation issues.

Step 2: - R Test:

2-1 Power on the board, and confirm that Rx value can be confirmed by adjusting Rx so that its quartz crystal can not work normally after confirming that the vibration starts
2-2. Insert the Rx value into the formula to calculate its circuit
- R value - R=(R1+Rx)

Step 3: Drive Level Test:

3-1 Power on the oscillating circuit and connect it to a current meter. Use professional current testing equipment to obtain the actual current (mA) on the circuit
Insert the obtained current value into the Drive Level formula to calculate its Drive Level value
Drive Level = I * RL